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Release Notes

Last updated: 2022-09-16 11:30:57

    August 2022

    Update Description Release Date Documentation
    Released a StarRocks cluster version: StarRocks v1.1.0. Added support for StarRocks v2.2.2. 2022-08-04 Component Version
    Released a Druid cluster version: Druid v1.1.0. Added support for Druid v0.23.0. 2022-08-04 Component Version

    July 2022

    Update Description Release Date Documentation
    Launched the overview page in the console. The cluster overview page displays various information, such as cluster status, health status of running services, and event statistics. 2022-07-22 -
    Upgraded the cluster overview feature.
  • The cluster directory navigation is optimized and upgraded.
  • The health status information of deployed services is refined to display real-time statistics of cluster events.
  • 2022-07-22 Cluster Overview
    Added new Impala query dimension and inspection items.
  • Dimensions of session ID, coordinator, and single-point memory peak are added.
  • Four inspection items are added for Impala: query timeouts, total query failures, total query commits, and query execution failure rate.
  • 2022-07-22 Impala Query Management
    Added the Impala daemon role. Over 70 visual Impala daemon metrics are added, which can trigger alarms in CM. 2022-07-22 Impala Monitoring Metrics
    Added new application APIs. The API for collecting YARN application queue statistics is added. 2022-07-22 Query Application Statistics
    Released a Hadoop cluster version—EMR v2.7.0. Added support for Hive 2.3.9, Spark 3.2.1, HBase 2.4.5, Flink 1.14.3, Trino 385, ZooKeeper 3.6.3, Iceberg 0.13.0, Hudi 0.11.0, Alluxio 2.8.0, Zeppelin 0.10.1, Superset 1.4.1, and Ranger 2.1.0. 2022-07-18 Component Version
    Improved the availability of the automatic scaling feature. Scale-out rules support the hybrid deployment of multiple resource specifications as well as pay-as-you-go/spot instances. 2022-07-07 Auto Scaling
    Added support for the RIT fixing tool for HBase. Regions in the RIT status can be fixed. 2022-07-07 HBase RIT Fixing
    Started the open beta test for container-based EMR clusters. Container-based EMR clusters become available in Beijing, Shanghai, and Guangzhou regions. 2022-07-07 Container-Based EMR

    June 2022

    Update Description Release Date Documentation
    Optimized the configuration management feature.
  • Configuration management is upgraded to support configuration filtering, categorization, and comparison.
  • The delivery priority rules for configurations at different levels are optimized to support delivery at the minimum level first.
  • A configuration group can be specified for the selected components.
  • 2022-06-20 Configuration Management
    Cluster Scale-Out
    Added support for Hive query management. The Hive service supports query management. 2022-06-07 Hive Query Management
    Optimized the YARN job query. YARN job query supports displaying task information and querying task logs. 2022-06-07 YARN Job Query
    Connected to Pricing Center. The pricing of EMR is connected to the Pricing Center, where you can query EMR node fees. 2022-06-07 Pricing

    May 2022

    Update Description Release Date Documentation
    Optimized the scaling feature.
  • New subnets can be added to expand cluster node capacity.
  • The Kyuubi service supports scaling.
  • 2022-05-17 Cluster Scale-Out
    Enhanced role management and user management.
  • User management supports batch import and export of users through APIs.
  • Resource management supports displaying client information.
  • The `DescribeClusterPhysicalMetaInfo` API is added for resource-level authentication.
  • 2022-05-17 -

    April 2022

    Update Description Release Date Documentation
    Released the EMR v3.4.0 for the Hadoop cluster.
  • Added support for Spark 3.2.1, Trino 372, Flink 1.14.3, HBase 2.4.5, ZooKeeper 3.6.3, Impala 4.0.0, Zeppelin 0.10.1, Alluxio 2.8.0, Hudi 0.10.1, Iceberg 0.13.1, and GooseFS 1.2.0.
  • Renamed PrestoSQL as Trino in the new version and added support for Ranger. Monitoring metric alarms need to be configured according to Trino in the new version.
  • 2022-04-22 Component Version
    Trino Monitoring Metrics
    Enriched monitoring.
  • Launched the new version of the interactive features of the event list.
  • Added event-related metrics such as node single-disk inode utilization, single-disk space utilization, single-disk IO utilization, all HBase HMasters standby, and all HDFS NameNodes standby.
  • Added monitoring metrics of the HDFS-Data node, including the block count, used disk space, available disk space, and reserved disk space.
  • 2022-04-22 Cluster Event
    HDFS Monitoring Metrics
    Added support for container-based EMR clusters. Added support for Spark deployment based on EKS in Beijing, Shanghai, Guangzhou, and Nanjing regions. 2022-04-12 Overview

    March 2022

    Update Description Release Date Documentation
    Added the StarRocks cluster type. Added the StarRocks cluster type and integrated open-source StarRocks. 2022-03-11 StarRocks Development Guide
    Added support for adding nodes without assigning ApplicationMasters by default. Added support for adding nodes without assigning ApplicationMasters by default, ensuring that the running ApplicationMaster will not be terminated and the job can be performed normally. 2022-03-08 Automatically Adding Task Nodes Without Assigning ApplicationMasters
    Added load-based scaling metrics. Added load-based scaling metrics such as ContainerPending, AppPending, and AppRunning. 2022-03-08 Auto Scaling
    Added support for setting node labels for added host resources. Added support for setting YARN node labels for added host resources to increase the resource utilization efficiency. 2022-03-08 -

    January 2022

    Update Description Release Date Documentation
    Released a Doris cluster version—Doris v1.2.0. Released Doris v0.15. 2022-01-21 Component Version
    Added support for sharing component configurations. Added support for sharing the components of an existing cluster with other clusters without deploying such components again. This makes it easier to manage multiple clusters with the same component configurations. January 14, 2022 Component Configuration Sharing
    Added monitoring metrics. Added Kylin, Zeppelin, Oozie, Storm, Livy, and Kyuubi monitoring metrics.
    Added new CosRanger monitoring metrics.
    - Kylin Monitoring Metrics
    Zeppelin Monitoring Metrics
    Oozie Monitoring Metrics
    Storm Monitoring Metrics
    Livy Monitoring Metrics
    Kyuubi Monitoring Metrics
    CosRanger Monitoring Metrics
    Optimized log search. Added support for more components and global regions and optimized log search interactions. - Log Search

    December 2021

    Update Description Release Date Documentation
    Added four use cases for the Hadoop cluster type. Added the ZooKeeper, HBase, Presto, and Kudu use cases for the Hadoop cluster type to help you quickly create a cluster based on your business scenario. 2021-12-17 Cluster Types
    Launched a new purchase page. Optimized the existing cluster creation process to support the placement group node dimension for unified resource management. 2021-12-17 Creating EMR Cluster
    Added support for system disk selection. Added support for selecting the system disk type and size as needed. 2021-12-17 -
    Optimized the task center. Added support for viewing the details of all tasks of the current cluster inside the cluster, and optimized the interaction path of the task center for easier viewing and use. 2021-12-17 -
    Launched diversified component operation features. Added support for visually setting instruction-level operations of components such as HDFS and YARN. 2021-12-07 Service Operation
    Added monitoring metrics. Added Doris monitoring metrics.
    Adjusted the original HBase table load to HBase table-level monitoring.
    2021-12-07 Doris Monitoring Metrics
    HBase Table-Level Monitoring
    Upgraded the operating system. Upgraded the operating systems of all EMR versions of the Hadoop type to TencentOS Server to provide a more stable, secure, and high-performance cloud native runtime environment. If you encounter any security issues related to the operating system of an existing cluster, contact us for assistance. 2021-12-03 Product Overview of TencentOS Server

    September 2021

    Update Description Release Date Documentation
    Released a Hadoop cluster version—EMR v3.3.0. Added support for HBase v2.3.5, Phoenix v5.1.2, Kudu v1.15.0, Hue v4.10.0, Hudi v0.8.0, Tez v0.10.1, Livy v0.8.0, Ganglia v3.7.2, Kyuubi v1.1.0, and LDAP v2.4.44. September 28, 2021 Component Version
    Added monitoring metrics. Enriched Alluxio service monitoring metrics and added COSRanger monitoring metrics. September 15, 2021 Alluxio Monitoring Metrics
    COSRanger Monitoring Metrics
    Connected to Cloud Monitor's default alarms Cloud Monitor supports default alarm policies for Elastic MapReduce metrics/events. September 15, 2021 -

    August 2021

    Update Description Release Date Documentation
    Added support for YARN resource scheduling. Added support for UI-based YARN resource scheduling configuration. August 31, 2021 YARN Resource Scheduling
    Added support for user management. Added support for visually managing Kerberos and Ranger users. August 31, 2021 Managing Users

    July 2021

    Update Description Release Date Documentation
    Released a Hadoop cluster version—EMR v2.6.0. Added support for Spark v3.0.2, Impala v3.4.0, GooseFS v1.0.0, OpenLDAP v2.4.44, Kyuubi v1.1.0, etc. July 15, 2021 Component Version

    June 2021

    Update Description Release Date Documentation
    Added support for YARN job query. Added detailed metric statistics for YARN jobs. June 24, 2021 YARN Job Query
    Added support for Impala query management. Added detailed metric statistics for Impala query jobs. June 24, 2021 Impala Query Management
    Added support for automatic scaling for the spot instance mode. Added support for automatically adding compute nodes of the spot instance mode. June 3, 2021 Auto Scaling
    Added support for graceful scale-in. When a scale-in action is triggered, nodes that are executing tasks will not be released immediately. Instead, they will be released after completing the tasks. June 3, 2021 Graceful Scale-In
    Added support for integrating Knox with Tez. Added support for viewing Tez tasks via UI. June 3, 2021 Integrating Knox with Tez
    Added availability zones. Added support for Singapore Zone 3 and Tokyo Zone 2. June 3, 2021 -
    Added regions. Added support for regions such as Moscow, Frankfurt, Virginia, Bangkok, Mumbai, Tokyo, Toronto, and Seoul. June 3, 2021 -

    May 2021

    Update Description Release Date Documentation
    Released a Kafka cluster version—Kafka v1.0.0. Added support for Kafka v1.1.1, KafkaManager v2.0.0.2, Knox v1.2.0, and ZooKeeper v3.6.1. May 13, 2021 Kafka Development Guide
    Released a Doris cluster version—Doris v1.0.0. Added support for Doris v0.13.0 and Knox v1.2.0. May 13, 2021 Doris Development Guide

    April 2021

    Update Description Release Date Documentation
    Released a Hadoop cluster version—EMR v3.2.0. Added support for Hadoop v3.2.2, Spark v3.0.2, Presto v350, Flink v1.12.1, Alluxio v2.5.0, Ranger v2.1.0, Iceberg v0.11.0, and Hudi v0.7.0. April 30, 2021 Component Version
    Added the **Start/Stop Services** feature. Added support for starting or stopping all services on a node. April 27, 2021 Starting/Stopping Services
    Released a Hadoop cluster version—EMR v2.5.1. Added support for Alluxio v2.5.0 and Hudi v0.5.1. Alluxio supports COS Transparent-URI. April 10, 2021 Support for COS Transparent-URI

    February 2021

    Update Description Release Date Documentation
    Released the EMR service in new regions on Tencent Cloud Chinese. Added support for the Bangkok, Seoul, Tokyo, Virginia, and Toronto regions on Tencent Cloud Chinese. February 2, 2021 -

    January 2021

    Update Description Release Date Documentation
    Added the cluster script feature. Added support for running a specified script on multiple nodes at a time for higher efficiency. January 26, 2021 Cluster Scripts
    Added support for cross-model configuration change. You can select other models to change the node configuration when the current model is sold out. January 26, 2021 Adjusting Configuration
    Added the auto scaling feature. The auto scaling feature automatically adds or removes task nodes, helping you save costs while meeting the requirement for cluster computing power. January 26, 2021 Auto Scaling
    Added monitoring metrics.
    1. Added new monitoring metrics for the HDFS, Yarn, HBase, Hive, and Druid services.
    2. Added support for monitoring on the Kudu and Alluxio services.
    January 13, 2021 Node Monitoring Metrics
    Released the EMR service in Singapore on the international version. Added support for Singapore Zone 1 and Singapore Zone 2 on the international version. January 13, 2021 -

    December 2020

    Update Description Release Date Documentation
    Released a Hadoop cluster version—EMR v3.1.0. Added support for Impala v3.4.0, Flink v1.10.0, HBase v2.3.3, Phoenix v5.0.0, Alluxio v2.3.0, Kudu v1.13.0, and ZooKeeper v3.6.1. December 14, 2020 Component Version

    November 2020

    Update Description Release Date Documentation
    Released the EMR TianQiong edition. Added support for Spark materialized views. November 27, 2020 Component Version
    EMR TianQiong Introduction
    Optimized monitoring and alarming.
  • Added support for setting alarms for disk monitoring metrics in Cloud Monitor (CM).
  • Added support for customizing EMR monitoring dashboard in CM dashboard.
  • Added support for subscribing to EMR event monitoring alarms in CM.
  • November 20, 2020 Dashboard

    October 2020

    Update Description Release Date Documentation
    Added support for Cloud Object Storage (COS) password-free access. Added support for authorizing access to COS through roles. Authorized users do not need to enter an authorization key and private key. 2020-10-26 -
    Added new service inspection items to the inspection system. Added the HDFS, Yarn, HBase, Hive, and ZooKeeper service inspection items, enhancing the health check of metrics. 2020-10-13 Cluster Inspection
    Added support for customizing event policies. Added support for customizing event policies so you can identify cluster events more efficiently. 2020-10-13 Cluster Event

    September 2020

    Update Description Release Date Documentation
    Released a Hadoop cluster version—EMR v2.5.0. Upgraded the Alluxio component to the stable version 2.3.0, which delivers better performance in the use cases where compute and storage are separated. September 17, 2020 Component Version

    August 2020

    Update Description Release Date Documentation
    Released a Hadoop cluster version—EMR v2.4.0. Added the Kudu component and upgraded some existing components. August 27, 2020 Component Version
    Added support for data migration in ClickHouse clusters. Improved cluster resource utilization for data security.August 17, 2020 ClickHouse Data Migration Guide

    July 2020

    Update Description Release Date Documentation
    Added support for custom configuration files. Added support for custom configuration files, which improves the flexibility of configuration management.July 29, 2020 Configuration Management
    Optimized configuration item editing. Added descriptions for configuration items and support for restoring them to defaults. 2020-07-29 -

    June 2020

    Update Description Release Date Documentation
    Added support for Druid service monitoring and HBase Thrift role monitoring. Improved troubleshooting efficiency.June 15, 2020 Druid Monitoring Metrics
    Released a Hadoop cluster version—EMR v2.3.0. Added support for the TensorFlow and Jupyter Notebook components. June 15, 2020 TensorFlow Overview
    Jupyter Notebook Overview
    Released ClickHouse v1.1.0 for ClickHouse clusters. Upgraded the ClickHouse component version to the LTS version, and added support for the Superset component.June 15, 2020 -
    Added support for cluster events and cluster inspections. Added support for recording major change events and exception events in clusters in the console for improved efficiency of cluster troubleshooting. Added support for one-time inspections and periodical inspections, making it easier to keep track of the health of your clusters and to deal with exceptions and risks in time. June 4, 2020 Cluster Event
    Cluster Inspection

    May 2020

    Update Description Release Date Documentation
    Optimized console interactions, UI, and operation paths. Improved operation path hierarchy for easier service management.May 15, 2020 -
    Added support for service monitoring for ClickHouse clusters. Made it easier to keep track of the operation status of ClickHouse clusters.May 15, 2020 ClickHouse Monitoring Metrics
    Added support for monitoring status for role management. Made it easier to keep track of the real-time status of role processes. May 15, 2020 -

    April 2020

    Update Description Release Date Documentation
    Added new cluster types. Added support for the ClickHouse and Druid clusters to provide more real-time query solutions.April 15, 2020 ClickHouse Overview
    Druid Overview
    Optimized bootstrap actions. Added support for the running occasions of bootstrap actions before a cluster starts. Added support for adjusting bootstrap actions after a cluster is created, so you can change your bootstrap actions based on business changes.April 15, 2020 -
    Optimized service restart policies. Added support for setting service restart policies, so you can select a proper restart method and a policy for handling restart exceptions. 2020-04-15 -

    March 2020

    Update Description Release Date Documentation
    Optimized the cluster monitoring page. Optimized the cluster overview, service monitoring, and node monitoring pages for improved readability. Monitoring metrics now support customization and heat maps about nodes.March 2020 -
    Added support for log search. Added support for filtering by log file, node IP, and time range, and viewing cluster log content. (Currently, this feature is supported only in Guangzhou region.)2020-03 Log Search
    Released EMR v2.2.0. Upgraded Hadoop to v2.8.5. Upgraded common components such as Spark, Hive, and HBase. Added the Hudi, Superset, Livy, Impala, Zeppelin, and Kylin components. 2020-03 Component Version

    February 2020

    Update Description Release Date Documentation
    Added support for sharing Hive metadatabase. Added support for associating an external Hive metadatabase to store the Hive metadata of a new cluster, so multiple Hive clusters can share metadata.February 2020 Hive Metadata Management
    Optimized cluster operation logs. Added display items for cluster operation logs to increase the readability of operation logs.February 2020 -
    Released the international version. Released the international version in Beijing, Shanghai, Guangzhou, and Mumbai regions.2020-02 -

    January 2020

    .

    Update Description Release Date Documentation
    Added support for cloud disk encryption. Added support for cloud disk encryption for Cloud Block Storage (CBS) users on the allowlist when creating an EMR cluster.January 2020Cloud Disk Encryption
    Added support for mounting cloud disks to a task node. Added support for mounting cloud disks to a task node when creating or scaling out a cluster.January 2020 -
    Released EMR in Nanjing region. Released EMR in Nanjing region.2020-01 -

    December 2019

    Update Description Release Date Documentation
    Released the feature of delivering group configuration. Added support for delivering group configuration. If the configuration of a node is different from that of the configuration group to which the node belongs, the configuration of the configuration group can be delivered to the node.December 2019 -
    Released the feature of resource-level CAM authorization. Added support for CAM authorization at the resource level.December 2019 -
    Released the feature of associating CHDFS. Added support for associating CHDFS and reading/writing data on CHDFS.December 2019 Mounting CHDFS
    Released the AMD model. Released the AMD Standard SA2 model in Beijing, Shanghai, and Guangzhou regions.2019-12 Instance Types
    Added the cluster monitoring overview page. Added the cluster monitoring overview page, which provides the views about the cluster, node, and service status.December 2019 Cluster Overview
    Added support for selecting metric display granularity as needed on the service monitoring page. Optimized the service monitoring page, so you can select a metric display granularity as needed.December 2019 -
    Added support for node service deployment and load status views on the node monitoring page. Optimized the node monitoring page, which provides the views about node service deployment and load status.December 2019 -

    November 2019

    Update Description Release Date Documentation
    Added support for node specification management. Added support for setting the default specification of nodes based on their billing mode. The default specification is pay-as-you-go.November 2019 Node Specification Management
    Added support for the configuration of the ZooKeeper, Alluxio, and Flink components. Added support for the configuration of the ZooKeeper, Alluxio, and Flink components.November 2019 -
    Released the feature of tagging clusters and nodes. Added support for tagging clusters and nodes.November 2019 Setting Tag
    Released new models in Beijing, Shanghai, and Guangzhou regions. Released the S5, M5, C3, and CN3 models in Beijing, Shanghai, and Guangzhou regions.2019-11 -

    October 2019

    Update Description Release Date Documentation
    Released EMR v3.0.0. Released EMR v3.0.0 with updated versions of major components.October 2019 Component Version

    September 2019

    Update Description Release Date Documentation
    Added full support for TencentCloud API 3.0. Added full support for TencentCloud API 3.0. Standardized the output/input parameters of certain existing v3.0 APIs. Added full support for v2.0 APIs in v3.0.September 2019 -
    Modified console configuration. Disused the escape feature for special characters.September 2019 -
    Added support for CM alarm policy configuration. Added support for configuring alarm policies in CM (in the Elastic MapReduce product category) for key metrics for node and service monitoring.September 2019 -

    August 2019

    Update Description Release Date Documentation
    Released the software configuration feature. Added support for software configuration, which enables you to create a cluster with custom component parameters. The feature of accessing external clusters was added as well.August 2019 Software Configuration
    Added support for configuring the remote login port when you purchase a cluster. Added support for enabling or disabling the remote login port when you purchase a cluster.August 2019 -
    Added support for mounting multiple cloud disks to a new cluster. Added support for mounting multiple cloud disks to a new cluster.August 2019 -
    Released the feature of scaling specified components. Added support for scaling specified components.August 2019 -
    Added monitoring metrics. Added new monitoring metrics for the Spark, Hive, Presto, and ZooKeeper components.August 2019 -

    July 2019

    Update Description Release Date Documentation
    Released the feature of HBase table-level monitoring. Added support for HBase table-level monitoring, which covers the number of read and write requests and storage of each table in HBase.July 2019 Service Monitoring
    Released EMR in new regions. Added support for the Singapore, Mumbai, and Chengdu regions.July 2019 -
    Released new models. Released the Standard S4 and Standard Network-Optimized SN3ne models in Beijing, Shanghai, and Guangzhou regions.2019-07 -
    Optimized the interactions of monitoring pages and added new monitoring metrics. Optimized the interactions of monitoring pages and added new monitoring metrics.July 2019 -
    Optimized WebUI proxy address. Optimized WebUI proxy address.July 2019 -

    June 2019

    Update Description Release Date Documentation
    Released the feature of accessing external clusters. Added support for accessing external clusters. June 2019 -
    Released the feature of setting bootstrap actions. Added support for setting bootstrap actions. June 2019 Bootstrap Actions
    Released the feature of delivering component parameter configuration to nodes. Added support for delivering component parameter configuration to nodes. June 2019 -
    Released the feature of rolling back parameter configuration. Added support for rolling back parameter configuration. June 2019 Configuration Rollback

    May 2019

    Update Description Release Date Documentation
    Released EMR v2.1.0. Released EMR v2.1.0 with updated versions of main components. May 2019 Component Version
    Added support for Kerberos security clusters. Added support for creating security clusters. The open source components in clusters are launched in Kerberos security mode. In this security environment, only authenticated clients can access the services (such as HDFS) of the clusters. May 2019 Kerberos Introduction
    Optimized monitoring metrics. Optimized the Node, HDFS, YARN, and HBase monitoring metrics. May 2019 Node Monitoring Metrics
    Optimized the style of console. Improved the style of console for a better interactive experience. May 2019 -
    Optimized CVM and TencentDB naming. Optimized CVM and TencentDB naming with the EMR cluster serial number for easier locating of cluster information. May 2019 -
    Changed the setting of public IPs of master nodes to optional. Changed the setting of public IPs of master nodes to optional. May 2019 -
    Released the feature of adjusting the number of common nodes. Added support for adjusting the number of common nodes as needed. May 2019 -

    March 2019

    Update Description Release Date Documentation
    Released new models. Released the I3 model in Beijing, Shanghai, and Guangzhou regions. This model is included in the CVM allowlist, and you can purchase it only if you are in the I3 allowlist. March 2019 -
    Released EMR in a new region. Made the purchase of EMR clusters available in the Silicon Valley region. March 2019 -
    Added support for router nodes. Added support for router nodes, which are mainly used to relieve the load of master nodes and as task submitters. March 2019 Node Type Description
    Released the feature of adjusting node configuration. Added support for adjusting node configuration. Nodes can be upgraded to a higher configuration. March 2019 Adjusting Configuration

    January 2019

    Update Description Release Date Documentation
    Added new components to existing clusters. Added support for adding new components to existing clusters. January 2019 Adding Components
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